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1、轮胎压力监测中英文资料外文翻译文献参考文献MonitoringtheTirePressureatCarsUsingPassiveSAWSensorsAlfredPohl1,G.Ostermayer},L.Reindl2,F.Seifert1)AppliedElectronicsLaboratory,UniversityoETechnology,Gusshausstrasse27,A-1040Vienna,Austria2)SiemensCentralResearchLab.,OttoHahnRing6,D-$1739Mu
2、nich,GermanyAbstract：Inourpaperwepresenttheapplicationofsurfaceacousticwave(SAW)sensorstothecontinuousmanitaringofthetirepressureinroadvehicles.Withthese,thetirepressurecanbereadoutineveryphaseofdriving.Weshowtheimplementedprototypesetupformeasurementofthetirepre
3、ssure,theappliedSAWsensors,improvedversionsandtheinterrogationsetup.Theproblemsinpracticalapplicationarediscussed.Experimentalresultsmeasuringthetirepressureduringtestridesarepresented.INTRODUCTIONOperatingaroadvehicle,amalfunctionofthetiresinmotionduetoatirepunc
4、turecancauseseriousaccidentsandendangerhumanlife.Furthermore,nowadaysmanufacturersofcarstrytosavethesparewheelinvehicles.Usuallyitonlycostsweightandspace,thereforeityieldsahigherfuelconsumption,althoughitwillberequiredlessthanonetimeinmorethantenyearsofacar'slife
5、.Thisonlycanbedone,iftheairpressureinthetirescanbemeasuredevenduringdriving.Currentlyusedsensorscontainactivecomponents,poweredbyaLithiumbattery.Themassofthesesensorassembliesisabout20gramscausinghighdynamicload.Afewyearsago,wirelessIyinterrogableSAWdevicesfarsen
6、sorapplicationswereinvented.[1，2,3].UsinganoneportSAWdelaylineconnectedtoanantennaonly,anRFinterrogationsignalisfedintoandthesensorresponse,carryingthesensorinformationisretransmittedwirelesslytotheinterrogator.Thesesensorsarecapableformeasurementoftemperature,me
7、chanicalload,forceanddisplacement,etc.Theadvantageis,thatSAWsensorsaretotallypassivedevicesandcontainneitherpowersupplynorsemiconductors.Theywithstandtemperaturesuptoseveralhundredsofdegreecentigrades,theirlifetimeismuchlongerthanthatofbatterypoweredsystems.Furth
8、er,invehiclesstrongelectromagneticpollutionisgeneratedbyignitionsystemsetc.SAWsensorsoperatewithoutriskofdamageeveninroughenvironments.Firstwediscusspressureme
